I was honestly surprised by the sudden entrance of cody, even if we knew that III was nearing its end
Pretty pumped!
The overall feel is completly different though, pretty peaceful.
Well, I guess there is still quite some time before it hitting the floors though (at least december if not next year)

Really passed a lot of time for this announcement (Gravity Wars was announced in 2014), specially for a game who gained a lot of attention and fans throughout this period. Atm i can't assume how it will be but i feel the theme will be similar to jubeat prop/IIDX HAPPY SKY.

About time. The fans back at Korea anticipated this for how many months and finally this.
Looks like the blue color scheme used in SDVX Booth is back. I was really hoping for green; the very green you'd see in Matrix text or Kryptonite
I think the overall feel for SDVX IV will be light in contrast with the current version's much heavier and more hi-tech feel. What do you think?

Well, other than the blue, there is multiple references to the sea, be it in the sound design or the kanji used.
Wonder how it'll translate in the game (I guess story and such will somehow continue though)
Also, will they introduce yet another new pattern this time (what can they do anymore though? The lasers going from side to side just like in old mario games where you can warp from the side of the screen?)

Also, how will they fill in the blank time before the release. There is no story left for Gravity Wars...Is there many contest song remaining yet?

"Is a man not entitled to the sweat of his brow? 'No!' says the man in Washington, 'It belongs to the poor.' 'No!' says the man in the Vatican, 'It belongs to God.' 'No!' says the man in Moscow, 'It belongs to everyone.' I rejected those answers; instead, I chose something different. I chose the impossible. I chose... Rapture!"

-Someone from the Bemani staff, from a totally accurate Konami board meeting for planning the theme of SDVX IV.